Properly export COLLADA for use in SceneKit
Until I can get a tutorial made I will give a couple pointers. 

Solve Blender "z" up axis


Create a folder on your desktop and give it an extension of ".scnassets"
Put your collada(.dae) file along with any textures you will be using
Drag the folder into your project and save as copy like usual. 
Click on your scnassets folder and you will see a checked box (if not check it) for converting to a "y" up axis. 


Using textures with Blender collada


Click on your collada(.dae) file inside your project in xcode. 
You should see your scene and on its left side a list of cameras, lights, materials, and such. 
Open the materials tab and click on one of your materials. 
On the right hand side in the inspection window click on the ball shaped icon to view the diffuse, specularity, and such of that one material. 
Click on the diffuse tab and when it opens you should have an option of colors and your textures within your project.  Select the texture you used on your model within Blender.  As long as you UV unwrapped them properly in blender they should apply instantly within your scene view.  


NOTE
Blender will not export the texture for you. No need to check on that tab inside of the collada exporter window. 

ANOTHER NOTE
If you want to add to or delete something from your scnassets folder, navigate to your project folder to do so and not xcode. This took me a while to figure out so thought I would save everyone the trouble.